With specially designed timers that produce momentary, random flashes or strobes of the spinning wing characteristics, all designed to mimic those same flashes given off by a flock of real ducks. Spinning wing decoys have been the greatest aid to duck hunting in the history of duck hunting, but lots of ducks have been fooled by them. Mimics the flash given off by a flock of real ducks, Designed for dry fields or water, Includes 6 units pre-programed with random on/off timers, and Operates up to 30 hours on 3 AA batteries